I went back to work when my oldest was a baby and I had the same thing happen when she was about your baby's age. I had to wake up in the middle of the night to pump when she had been sleeping through the night since 11 weeks old just to try to get enough milk for the day.

I tried taking fenugreek and drinking the mothers milk tea which helped a little... may be try adding that in?

I ended up losing my milk pretty quickly once I started losing and I wasn't able to get it back. shortly after noticing the drop in supply I would only pump an ounce then a half an ounce and then I just had to be done there wasn't anything left.

I had my settings to lose a pound a week. I lost pounds and I lost milk supply. Right now Im 3Lbs away from goal and havent lost anymore for a while I kept yo-yoing. Turns out mfp had my starting calories too low, lower than my bmr. You should always eat between your bmr-tdee, and thats not even considering bfeeding. Eating too low will make your body hang on to the weight too. I suggest to go to tools, and find your bmr. Google to find a tdee calculator. Your tdee is your maintainance calories, so you can eat between bmr-tdee. I found a breastmilk calculator that tells how much the baby can consume by his weight.

http://www.fourfriends.com/cgi-bin/milk.pl

Its -20 calories per ounce. If you make sure you log those and eat them back, plus eat at a reasonable deficit you can lose, slowly but at least you would keep your supply. I hate numbers myself but I wish I had done it sooner. Pm me if you have questions about this.

Wow, crazy! That milk calculator would put me at burning 800 cals to make 40 oz of milk (18lb 9mo old w/5-6 feedings in 24 hrs). Doesn't that seem exceedingly high? She does still get most of her nutrition from breast milk, being a slow solids eater (We BLW and she is a table scrap nibbler). I've been logging 350 cals per day for breast feeding because she's an older baby.

My other numbers are OK (BMR being 1392 and TDEE being 2298. I've been eating around 1600 cals per day as well as eating back BF cals (350) and exercise cals. I still lose ridiculously slowly, often maintaining or gaining a pound or two a day for a week to ten days and then it falls off like, 1/2 lb at a time. Maybe I should increase my BF cals a smidgen? Ugh, I'm so not a numbers person!

At any rate, maybe it's time to try tweaking my diet for a few weeks: eating vegetarian or taking out all refined sugars. While I eat pretty well, I do still allow myself lean meats and a small amt of sugar. I'm at pre-preg weight, so anything that happens from here is bonus I suppose (even though I'd like to lose at least 15 more pounds!)

I was unable to continue BF my little guy (for a few reasons unrelated to losing weight) but I used domperidone with 2 of my children to help build a stronger milk supply. I can tell you where to get it for an awesome price. PM me if you're interested.